Legal claims defining the scope of protection, as filed with the USPTO.
1. A method of transmitting data so as to reduce electromagnetic interference associated therewith, the method comprising: receiving a plurality of un-encoded control symbols and a plurality of data symbols; generating one or more pseudo-random values based on a transmitting linear feedback shift register (LFSR); and scrambling only the plurality of un-encoded control symbols, the plurality of un-encoded control symbols being scrambled with the generated one or more pseudo-random values in order to produce a plurality of corresponding pseudo-random values, where a plurality of scrambled corresponding control symbols are retrieved from a lookup table based on the plurality of corresponding pseudo-random values generated using the scrambling; wherein: transmitting of the plurality of scrambled corresponding control symbols minimizes undesirable electromagnetic radiation and interference; the receiving LFSR comprises a self-synchronizing LFSR; and the receiving LFSR is forced to a known value to self-synchronize, the known value comprising a channel number selected from a plurality of channel numbers.
2. The method of transmitting data of claim 1 , wherein the plurality of un-encoded control symbols is associated with a High-Definition Multimedia Interface (HDMI) interface.
3. The method of claim 1 , further comprising using a sub-set of bits generated by the transmitting LFSR, the sub-set of bits being used to generate the one or more pseudo-random values.
4. The method of claim 3 , wherein the using of the sub-set of bits comprises using a set of least significant bits to generate the plurality of pseudo-random values.
5. The method of claim 3 , wherein the using of the sub-set of bits comprises using a set of most significant bits to generate the plurality of pseudo-random values.
6. The method of claim 1 , wherein the transmitting of the plurality of scrambled corresponding control symbols further comprises transmitting the plurality of scrambled corresponding control symbols when the transmitting LFSR and the receiving LFSR are synchronized.
7. The method of claim 1 , further comprising updating a running disparity count after each one of the plurality of scrambled corresponding control symbols is transmitted.
8. The method of claim 7 , further comprising using the running disparity count for the retrieving of the plurality of scrambled corresponding control symbols.
9. The method of claim 1 , further comprising padding the generated one or more pseudo-random values with one or more additional bits.
10. The method of claim 9 , further comprising generating an index value for use with the lookup table by exclusive OR′ing the padded one or more pseudo-random values with the generated one or more pseudo-random values.
11. An apparatus, the apparatus comprising: a transmitting linear feedback shift register (LFSR); and an electronic circuit configured to: receive a plurality of un-encoded control symbols and a plurality of data symbols; generate one or more pseudo-random values based on the transmitting LFSR; and scramble only the plurality of un-encoded control symbols, the plurality of un-encoded control symbols being scrambled with the generated one or more pseudo-random values in order to produce a plurality of corresponding pseudo-random values, where a plurality of scrambled corresponding control symbols are retrieved from a lookup table based on the plurality of corresponding pseudo-random values generated using the scrambling; wherein: transmission of the plurality of scrambled corresponding control symbols minimizes undesirable electromagnetic radiation and interference; the receiving LFSR comprises a self-synchronizing LFSR; and the receiving LFSR is forced to a known value to self-synchronize, the known value comprising a channel number selected from a plurality of channel numbers.
12. The apparatus of claim 11 , wherein the plurality of un-encoded control symbols are associated with a High-Definition Multimedia Interface (HDMI) interface.
13. The apparatus of claim 12 , wherein the electronic circuit is further configured to use a sub-set of bits generated by the transmitting LFSR, the sub-set of bits being used to generate the one or more pseudo-random values.
14. The apparatus of claim 13 , wherein the use of the sub-set of bits further comprises use of a set of least significant bits to generate the plurality of pseudo-random values.
15. The apparatus of claim 13 , wherein the use of the sub-set of bits further comprises use of a set of most significant bits to generate the plurality of pseudo-random values.
16. The apparatus of claim 11 , wherein the transmission of the plurality of scrambled corresponding control symbols further comprises transmission of the plurality of scrambled corresponding control symbols when the transmitting LFSR and the receiving LFSR are synchronized.
17. The apparatus of claim 11 , wherein the electronic circuit is further configured to update a running disparity count after each one of the plurality of scrambled corresponding control symbols is transmitted.
18. The apparatus of claim 17 , wherein the running disparity count is utilized for the retrieval of the plurality of scrambled corresponding control symbols.
19. The apparatus of claim 11 , wherein the electronic circuit is further configured to pad the generated one or more pseudo-random values with one or more additional bits.
20. The apparatus of claim 19 , wherein the electronic circuit is further configured to generate an index value for use with the lookup table via an exclusive OR operation of the padded one or more pseudo-random values with the generated one or more pseudo-random values.
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December 5, 2017
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